Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Brownsville | 1 | 191,209 | 187,004 | 0.55% | 1,451 | 131.8 | City |
| Harlingen | 2 | 71,387 | 71,879 | -0.17% | 1,780 | 40.1 | City |
| San Benito | 3 | 24,381 | 24,829 | -0.46% | 1,543 | 15.8 | City |
| Los Fresnos | 4 | 8,437 | 8,137 | 0.9% | 1,934 | 4.4 | City |
| La Feria | 5 | 6,731 | 6,837 | -0.4% | 1,561 | 4.3 | City |
| Cameron Park | 6 | 5,641 | 5,716 | -1.66% | 10,350 | 0.5 | CDP |
| Primera | 7 | 5,404 | 5,272 | 0.61% | 1,946 | 2.8 | Town |
| Port Isabel | 8 | 5,149 | 5,023 | 0.61% | 759 | 6.8 | City |
| Laureles | 9 | 3,839 | 4,046 | 0.29% | 800 | 4.8 | CDP |
| Laguna Vista | 10 | 3,802 | 3,536 | 1.77% | 788 | 4.8 | Town |
| Combes | 11 | 3,177 | 3,153 | 0.19% | 978 | 3.2 | Town |
| Rancho Viejo | 12 | 2,854 | 2,830 | 0.21% | 1,391 | 2.1 | Town |
| La Paloma | 13 | 2,790 | 4,140 | -0.29% | 1,295 | 2.2 | CDP |
| Rio Hondo | 14 | 2,387 | 2,019 | 4.01% | 1,413 | 1.7 | City |
| Santa Rosa | 15 | 2,343 | 2,459 | -1.22% | 3,035 | 0.8 | Town |
| Encantada-Ranchito-El Calaboz | 16 | 2,031 | 1,832 | -0.78% | 772 | 2.6 | CDP |
| South Padre Island | 17 | 2,030 | 2,073 | -0.54% | 755 | 2.7 | Town |
| Rice Tracts | 18 | 1,382 | 540 | 7.63% | 739 | 1.9 | CDP |
| Palm Valley | 19 | 1,341 | 1,407 | -1.25% | 2,242 | 0.6 | City |
| Laguna Heights | 20 | 1,148 | 1,778 | -12.7% | 7,130 | 0.2 | CDP |
| Los Indios | 21 | 1,007 | 1,014 | -0.2% | 537 | 1.9 | Town |
| Reid Hope King | 22 | 949 | 1,008 | 1.17% | 3,295 | 0.3 | CDP |
| Indian Lake | 23 | 876 | 843 | 0.92% | 3,809 | 0.2 | Town |
| La Tina Ranch | 24 | 743 | 953 | 1.23% | 106 | 7.0 | CDP |
| Arroyo Colorado Estates | 25 | 725 | 670 | -2.69% | 672 | 1.1 | CDP |
| Olmito | 26 | 725 | 1,255 | -4.48% | 1,133 | 0.6 | CDP |
| Las Palmas II | 27 | 724 | 1,256 | -8% | 2,335 | 0.3 | CDP |
| Solis | 28 | 717 | 638 | 1.99% | 430 | 1.7 | CDP |
| Orason | 29 | 675 | 555 | 6.13% | 2,045 | 0.3 | CDP |
| Bluetown | 30 | 663 | 562 | 3.43% | 226 | 2.9 | CDP |
| Juarez | 31 | 595 | 1,787 | -4.8% | 2,975 | 0.2 | CDP |
| Santa Maria | 32 | 563 | 724 | -2.09% | 1,982 | 0.3 | CDP |
| Bayview | 33 | 558 | 476 | 3.72% | 144 | 3.9 | Town |
| South Point | 34 | 552 | 1,197 | -9.66% | 393 | 1.4 | CDP |
| Bixby | 35 | 414 | 604 | -1.66% | 264 | 1.6 | CDP |
| Santa Rosa | 36 | 410 | 320 | 3.02% | 5,325 | 0.1 | CDP |
| Villa Pancho | 37 | 396 | 378 | -6.6% | 1,347 | 0.3 | CDP |
| Green Valley Farms | 38 | 334 | 409 | -16.71% | 87 | 3.9 | CDP |
| San Pedro | 39 | 332 | 182 | -4.05% | 273 | 1.2 | CDP |
| Arroyo Gardens | 40 | 293 | 198 | -3.62% | 74 | 3.9 | CDP |
| Zapata Ranch | 41 | 269 | 216 | 4.26% | 191 | 1.4 | CDP |
| La Feria North | 42 | 248 | 233 | 0.81% | 217 | 1.1 | CDP |
| Los Fresnos | 43 | 230 | 24 | 7.98% | 1,271 | 0.2 | CDP |
| Villa Sol | 44 | 214 | 141 | 1.42% | 1,132 | 0.2 | CDP |
| Lozano | 45 | 148 | 0 | -11.38% | 1,254 | 0.1 | CDP |
| Ratamosa | 46 | 116 | 99 | -7.94% | 57 | 2.0 | CDP |
| Chula Vista | 47 | 93 | 135 | -13.08% | 508 | 0.2 | CDP |
| Lasana | 48 | 92 | 149 | 6.98% | 112 | 0.8 | CDP |
| Del Mar Heights | 49 | 82 | 163 | -2.38% | 188 | 0.4 | CDP |
| Tierra Bonita | 50 | 51 | 65 | -12.07% | 56 | 0.9 | CDP |
| Yznaga | 51 | 51 | 56 | 6.25% | 9 | 5.5 | CDP |
| Iglesia Antigua | 52 | 38 | 212 | -41.54% | 18 | 2.1 | CDP |
| Santa Monica | 53 | 9 | 11 | 0% | 9 | 1.0 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Brownsville is the largest city in Cameron County.
Santa Monica is the smallest city in Cameron County.
There are 53 cities in Cameron County, Texas.